<!DOCTYPE <!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>TEST</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <style>
        .test
        {
            display: inline;
            padding: 25px;
        }
    </style>
</head>
<body>
    <h1 class="test">ceshi</h1>
    <span>fff</span>
</body>
</html>